When I run Jest in my plugin, if any code that imports `registerBlockType` is imported, I get this error:

```
● Test suite failed to run

    /Users/josh/caldera-dev/caldera-wordpress-plugin/node_modules/simple-html-tokenizer/dist/es6/tokenizer.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import EventedTokenizer from './evented-tokenizer';
                                                                                             ^^^^^^

    SyntaxError: Unexpected token import

      at ScriptTransformer._transformAndBuildScript (node_modules/jest-runtime/build/ScriptTransformer.js:289:17)
      at Object.<anonymous> (node_modules/@wordpress/blocks/build/api/validation.js:33:41)
      at Object.<anonymous> (node_modules/@wordpress/blocks/build/api/parser.js:38:19)

```